Antoninus Pius, 138-161. Denarius (silver, 3.16 g, 18 mm), Rome, 159-160. ANTONINVS AVG PIVS P P TR P XXIII Laureate head of Antoninus Pius to right. Rev. PACI AVG COS IIII Pax standing front, head to left, holding olive branch in her right hand and long scepter in her left. RIC 301. Very fine.